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Behaviour of micro flora and pathogens following decontamination of poultry carcasses
Project
Project code: BfR-BIOS-08-1322-447
Contract period: 01.04.2010
- 31.12.2010
Purpose of research: Applied research
Following to decontamination procedures of poultry carcasses the original micro flora changes dramatically after the process and recent opinions expressed by the EFSA suggest that there is also a potential increase of resistance of pathogen microorganisms to the substances applied for decontamination. The dramatic changes of micro flora may also induce a boosted growth of pathogens like Listeria spp. and Salmonella spp. after the decontamination step because of lacking competitive flora. In case of recontamination during the slaughter process Listeria spp. and Salmonella spp. may be still present on poultry carcasses after chemical decontamination or if i.e. Salmonella spp. survive the decontamination step. Remaining Listeria spp. and Salmonella spp. may also alter their behaviour and show an increase of resistance compared to their sensitivity against chemicals before the decontamination procedure. These factors may provoke less or no decontamination effects with the chemicals in question.Before approval of decontamination procedures for poultry carcasses the efficacy of the measure applied as well as the implication of resistance towards the chemical substances applied and the possible circumstances of improved growth factors for Listeria spp. and Salmonella spp. after decontamination have to be investigated.
Section overview
Subjects
- Food microbiology
- Toxicology
